Created Issue: ASP.Net AjaxToolkit MaskedEditExtender defaults to AM only when system time is PM [27311]

I am using AjaxToolkit MaskedEditExtender with MaskedEditValidator on a textbox showing datetime in 12 hours format. Its behavior should be, when user just enters date it should automatically fill system time with correct AM/PM value.

Issue is when time is between 12:01 PM to 1:00 PM.. the time defaults to AM

System datetime: December 16, 2010 9:35 AM
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When user enters 12/16/2010 __:__ and press tab it defaults --> 12/16/2010 9:35 AM
which is correct

System datetime: December 16, 2010 12:35 PM
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When user enters 12/16/2010 __:__ and press tab it defaults --> 12/16/2010 12:35 AM
which is WRONG... It should be PM instead of AM